79 lines
2.4 KiB
C++
79 lines
2.4 KiB
C++
/*************************************************************************\
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* Copyright (c) 2002 The University of Chicago, as Operator of Argonne
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* National Laboratory.
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* Copyright (c) 2002 The Regents of the University of California, as
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* Operator of Los Alamos National Laboratory.
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* EPICS BASE Versions 3.13.7
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* and higher are distributed subject to a Software License Agreement found
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* in file LICENSE that is included with this distribution.
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\*************************************************************************/
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/*
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* $Id$
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*
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* Author Jeffrey O. Hill
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* johill@lanl.gov
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* 505 665 1831
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*/
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#include <limits.h>
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#define epicsExportSharedSymbols
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#include "epicsGuard.h"
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#include "timerPrivate.h"
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timerQueueActiveMgr::timerQueueActiveMgr ()
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{
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}
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timerQueueActiveMgr::~timerQueueActiveMgr ()
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{
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epicsGuard < epicsMutex > locker ( this->mutex );
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}
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epicsTimerQueueActiveForC & timerQueueActiveMgr::allocate (
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bool okToShare, unsigned threadPriority )
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{
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epicsGuard < epicsMutex > locker ( this->mutex );
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if ( okToShare ) {
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tsDLIter < epicsTimerQueueActiveForC > iter = this->sharedQueueList.firstIter ();
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while ( iter.valid () ) {
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if ( iter->threadPriority () == threadPriority ) {
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assert ( iter->timerQueueActiveMgrPrivate::referenceCount < UINT_MAX );
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iter->timerQueueActiveMgrPrivate::referenceCount++;
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return *iter;
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}
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iter++;
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}
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}
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epicsTimerQueueActiveForC & queue = * new epicsTimerQueueActiveForC ( okToShare, threadPriority );
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queue.timerQueueActiveMgrPrivate::referenceCount = 1u;
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if ( okToShare ) {
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this->sharedQueueList.add ( queue );
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}
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return queue;
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}
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void timerQueueActiveMgr::release ( epicsTimerQueueActiveForC &queue )
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{
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epicsGuard < epicsMutex > locker ( this->mutex );
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assert ( queue.timerQueueActiveMgrPrivate::referenceCount > 0u );
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queue.timerQueueActiveMgrPrivate::referenceCount--;
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if ( queue.timerQueueActiveMgrPrivate::referenceCount == 0u ) {
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if ( queue.sharingOK () ) {
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this->sharedQueueList.remove ( queue );
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}
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timerQueueActiveMgrPrivate *pPriv = &queue;
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delete pPriv;
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}
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}
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timerQueueActiveMgrPrivate::timerQueueActiveMgrPrivate () :
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referenceCount ( 0u )
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{
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}
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timerQueueActiveMgrPrivate::~timerQueueActiveMgrPrivate ()
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{
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}
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